Skeletron Prime

NPC

Skeletron Prime

  • Boss

Skeletron Prime is a Terraria NPC. It shows up during this event: Nighttime. It drops 8 items: Treasure Bag (Skeletron Prime), Skeletron Prime Relic, Hallowed Bar and 5 more.

Bestiary entry

Rarity:

Mechanically reconstructed for reviving Cthulhu, this Skeletron has more arms than ever before, and a variety of fierce weapons.

Stats by game mode

ClassicExpertMasterLegendary (For the Worthy)
Life28,00042,00053,55071,400
Attack4780120212
Defense24242424
Knockback Taken0% (None)0% (None)0% (None)0% (None)
Coins12303042

The last column is Master mode in a For the Worthy world.

Numbers are for one player, before Hardmode.

Coins: each kill rolls from 80% to 175% of this value. Rarer extra rolls can add more.

Attacks

ClassicExpertMasterLegendary
Touch damage4780120212

How to fight it

How it appears

  • Summon item: Mechanical Skull. Use it at night.
  • Without an item: In Hardmode, once an altar was smashed and no boss is alive, each nightfall has a 1 in 10 roll that picks one mechanical boss not yet beaten. It comes after night time 4,860.

What beating it changes

Drops

Classic

ItemQuantityChanceKills for 50%Kills for 90%Conditions
Hallowed Bar15 to 30100%
Soul of Fright25 to 40100%
Waffle's Iron1100%In a world made with the Remix and For the Worthy seeds (Mechdusa), only from the last Mechdusa boss to die
Skeletron Prime Mask11/7 (14.3%)515
Skeletron Prime Trophy11/10 (10%)722Only when the enemy counts as a boss

Expert

ItemQuantityChanceKills for 50%Kills for 90%Conditions
Waffle's Iron1100%In a world made with the Remix and For the Worthy seeds (Mechdusa), only from the last Mechdusa boss to die
Skeletron Prime Trophy11/10 (10%)722Only when the enemy counts as a boss

Master

ItemQuantityChanceKills for 50%Kills for 90%Conditions
Skeletron Prime Relic1100%
Waffle's Iron1100%In a world made with the Remix and For the Worthy seeds (Mechdusa), only from the last Mechdusa boss to die
Robotic Skull11/4 (25%)39
Skeletron Prime Trophy11/10 (10%)722Only when the enemy counts as a boss

Chance is per kill. Kills for 50% / 90% is how many kills give that chance of at least one drop.

Treasure Bag (Skeletron Prime) contents

In Expert and Master this bag replaces most drops above.

ItemQuantityChanceKills for 50%Kills for 90%Conditions
Hallowed Bar20 to 35100%
Mechanical Battery Piece1100%
Soul of Fright25 to 40100%
Skeletron Prime Mask11/7 (14.3%)515
Aaron's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Aaron's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Aaron's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Arkhalis11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Arkhalis' Bodice11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Arkhalis' Hood11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Arkhalis' Lightwings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Arkhalis' Tights11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Cenx's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Cenx's Dress11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Cenx's Dress Pants11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Cenx's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Cenx's Tiara11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Tiara11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Chicken Bones' Pants11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Chicken Bones' Robe11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Chicken Bones' Vest11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Chicken Bones' Visor11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Chicken Bones' Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Crowno's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Crowno's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Crowno's Mask11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Crowno's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
D-Town's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
D-Town's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
D-Town's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
D-Town's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
FoodBarbarian's Horned Helm11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
FoodBarbarian's Savage Greaves11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
FoodBarbarian's Tattered Dragon Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
FoodBarbarian's Wild Wolf Spaulders11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Ghostar's Garb11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Ghostar's Infinity Eight11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Ghostar's Soul Jar11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Ghostar's Tights11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Grox The Great's Chestplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Grox The Great's Greaves11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Grox The Great's Horned Cowl11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Grox The Great's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Jim's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Jim's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Jim's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Jim's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Kazzymodus' Chestpiece11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Kazzymodus' Hood11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Kazzymodus' Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Kazzymodus' Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Lazure's Barrier Platform11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Lazure's Valkyrie Circlet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Lazure's Valkyrie Cloak11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Leinfors' Excessive Style11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Leinfors' Fancypants11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Leinfors' Hair Protector11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Leinfors' Luxury Shampoo11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Leinfors' Prehensile Cloak11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Loki's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Loki's Dye41/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Loki's Greaves11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Loki's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Loki's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Cloak11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Hood11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Pants11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Shirt11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Red's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Red's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Red's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Red's Throw11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Red's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Safeman's Blanket Cape11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Safeman's Pink Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Safeman's Sun Dress11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Safeman's Sunny Day11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Skiphs' Bear Butt11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Skiphs' Blood41/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Skiphs' Mask11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Skiphs' Paws11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Skiphs' Skin11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Valkyrie Yoyo11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Will's Breastplate11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Will's Helmet11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Will's Leggings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Will's Wings11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Yoraiz0r's Recolored Goggles11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Yoraiz0r's Scowl11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Yoraiz0r's Skirt11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Yoraiz0r's Spell11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Yoraiz0r's Uniform11/168 (0.6%)117386In a world made with the Celebration Mk 10 seed
Aaron's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Aaron's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Aaron's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Arkhalis11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Arkhalis' Bodice11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Arkhalis' Hood11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Arkhalis' Lightwings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Arkhalis' Tights11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Cenx's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Cenx's Dress11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Cenx's Dress Pants11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Cenx's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Cenx's Tiara11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Tiara11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Cenx's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Also given by another roll in this bag
Chicken Bones' Pants11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Chicken Bones' Robe11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Chicken Bones' Vest11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Chicken Bones' Visor11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Chicken Bones' Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Crowno's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Crowno's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Crowno's Mask11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Crowno's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
D-Town's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
D-Town's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
D-Town's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
D-Town's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
FoodBarbarian's Horned Helm11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
FoodBarbarian's Savage Greaves11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
FoodBarbarian's Tattered Dragon Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
FoodBarbarian's Wild Wolf Spaulders11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Ghostar's Garb11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Ghostar's Infinity Eight11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Ghostar's Soul Jar11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Ghostar's Tights11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Grox The Great's Chestplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Grox The Great's Greaves11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Grox The Great's Horned Cowl11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Grox The Great's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Jim's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Jim's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Jim's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Jim's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Kazzymodus' Chestpiece11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Kazzymodus' Hood11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Kazzymodus' Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Kazzymodus' Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Lazure's Barrier Platform11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Lazure's Valkyrie Circlet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Lazure's Valkyrie Cloak11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Leinfors' Excessive Style11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Leinfors' Fancypants11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Leinfors' Hair Protector11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Leinfors' Luxury Shampoo11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Leinfors' Prehensile Cloak11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Loki's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Loki's Dye41/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Loki's Greaves11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Loki's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Loki's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Cloak11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Hood11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Pants11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Shirt11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Luna's Runic Pixie Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Red's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Red's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Red's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Red's Throw11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Red's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Safeman's Blanket Cape11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Safeman's Pink Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Safeman's Sun Dress11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Safeman's Sunny Day11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Skiphs' Bear Butt11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Skiphs' Blood41/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Skiphs' Mask11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Skiphs' Paws11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Skiphs' Skin11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Valkyrie Yoyo11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Will's Breastplate11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Will's Helmet11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Will's Leggings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Will's Wings11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Yoraiz0r's Recolored Goggles11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Yoraiz0r's Scowl11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Yoraiz0r's Skirt11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Yoraiz0r's Spell11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed
Yoraiz0r's Uniform11/336 (0.3%)233773Not in a world made with the Celebration Mk 10 seed

Also see